灾害学Issue(1)：72-77,6.DOI:10.3969/j.issn.1000-811X.2016.01.015
关于西北地区的自然灾害链
Analysis of Natural Disaster Chain in Northwest China
摘要
Abstract
Based on the disaster system theory,according to Chinese Provincial Newspapers Disaster Database (1949-2005),major disaster chains in Northwest China are built:drought disaster chain (divided into high tem-perature-drought chain,drought-pests-disease disaster chain,and drought-wind-sandstorm chain),earthquake dis-aster chain and cold-snow disaster chain.The results show that:less precipitation,high latitude,widespread des-ert,mountains and basins,plateaus and plains and other factors may lead to drought disaster chains.The disaster situation amplified with the processing of disaster chains,increased by the vulnerability of hazard-affected bodies. It is suggested that water resource protection be strengthened in the upstream mountainous arid areas,desertification and desertification be combated in the semi-arid steppe regions,and soil erosion be prevented and controlled in the Yellow River Basin.Taking the earthquake disaster and cold-snow disaster chain as the analysis cases,the corre-sponding mitigation measures are proposed to provide a scientific basis for disaster mitigation for governments.关键词
灾害链/干旱/地震/寒潮 -雪灾/致灾/成灾/区域减灾/西北地区Key words
disaster chain/drought/earthquake/cold-snow disaster/hazard/disaster/regional disaster re-duction/Northwest China分类
资源环境引用本文复制引用
贾慧聪,王静爱,杨洋,潘东华,杨佩国,张万昌..关于西北地区的自然灾害链[J].灾害学,2016,(1):72-77,6.基金项目
国家自然科学基金项目（41301593，41471428）；中国气象局兰州干旱气象研究所资助项目（IAM201407）；民政部国家减灾中心委托项目 （）
